spliting 108's

D

domsz4

Veteran
can i get some practical advice for splitting the rims?

i.e ways to release the bolts, techniques for doing it (such as when i was a kid and was taught that sometimes if a bolt is stuck fast then trying to tighten it a bit can help), things to watch out for when doing it like feelings etc. and also what to do in the event i actually stuff a bolt up?
 
I'm in the middle of refurbishing some 108s. There was quite a lot of corrosion on them and so I was a little apprehensive about the splitting and expecting problems with the bolts but I squirted WD40 down each bolt and left them for a few days while I waited for the 12 spline tool to arrive from ebay. They all came out without problem even though a couple were quite tight.
I guess if one snaps you're looking at drilling and re tapping and/or helicoiling the thread or spark erosion. Not easy to drill into harder metals surrounded by soft alloy though. Don't worry though think positive :)
 
So am I ? is this an illness that we are all coming down with?
:?
Have all 80 slackened about 1 turn have spayed release oil in and will leave before further slackening like you blade owner.
Only one knackered one (looks like a previous attempt to loosen by some one failed)and I got that out by tapping in a Torx bit in which gripped o.k. They are not that tightly torqued but its the corrosion effect. :cry:
 
Toe-side said:
So am I ? is this an illness that we are all coming down with?
:?
Have all 80 slackened about 1 turn have spayed release oil in and will leave before further slackening like you blade owner.
Only one knackered one (looks like a previous attempt to loosen by some one failed)and I got that out by tapping in a Torx bit in which gripped o.k. They are not that tightly torqued but its the corrosion effect. :cry:
Click to expand...

Think it's called masochism :o
All the threads in the wheel look good and I spent 2 hours yesterday cleaning and polishing the 80 bolts on my little lathe. I now have a jam jar full of shiney ones. :)
 
I refurb'd a set last yr.

Splitting them just be patient as soon as the spline head slips then bin it, otherwise it will destroy some of the bolts.


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I've probably split 20 - 30 rims now and only failed on one bolt and on 2 that someone brough to me that had been previously wrecked.

Use a good sharp spline drive (quality tools always pay) and either an impact wrench to simply drive them out or a T bar so you undo them straight.

I've never bothered with penetrating oil as it won't get to th point where it matters.
 
Split a set at the weekend.

Damaged the heads of the 1st two bolts I tried to remove but this was due to the wheels being "refurbished" once before (they'd just painted the faces and sprayed over the bolt heads). Used paint stripper on all the other bolt heads and got those out without issue (a couple will need to be replaced due to slight damage to the heads).

If you damage the heads on any bolts, and are unable to get them out with the spline, try hammering in a hex bit. I managed to get one using this method. The other I needed to drill.

No need to go down the helicoil route if they need to be drilled. I used a 6mm bit to take the head off the bolt, then once the wheel was split managed to remove the bolt with mole grips after appyling some heat.

The bolts are hardened though (possibly titanium?) so be patient if you need to drill any. Use a relatively low speed / high torque and plenty of drill oil to keep the drill bit cool (olive oil works well).

God luck,
Hoz
 
Hozcat said:
Split a set at the weekend.

Damaged the heads of the 1st two bolts I tried to remove but this was due to the wheels being "refurbished" once before (they'd just painted the faces and sprayed over the bolt heads). Used paint stripper on all the other bolt heads and got those out without issue (a couple will need to be replaced due to slight damage to the heads).

If you damage the heads on any bolts, and are unable to get them out with the spline, try hammering in a hex bit. I managed to get one using this method. The other I needed to drill.

No need to go down the helicoil route if they need to be drilled. I used a 6mm bit to take the head off the bolt, then once the wheel was split managed to remove the bolt with mole grips after appyling some heat.

The bolts are hardened though (possibly titanium?) so be patient if you need to drill any. Use a relatively low speed / high torque and plenty of drill oil to keep the drill bit cool (olive oil works well).

God luck,
Hoz
Click to expand...

I was thinking of helicoils etc more if a bolt snaps off flush. If the heads just damaged then as you say mole grips will probably suffice.
 
thanks for the replies so far, can some one point me in the direction of this tool i need as i don't really know what it is and im not really coming up with much. i know its 12 splined but that about it.
 
I bought mine from ebay - 2X 8mm 12pt spline. I put one in a 10mm socket and used a ratchet to loosen and the other I put in a drill to spin out once loose.

http://www.ebay.co.uk/itm/290924649415?var=590132134817&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
 
ah right for some reason i thought i'd read somewhere it was M7. if its M8 then i may already have one or be able to borrow one.
 
WD40 is great at shifting moisture but if you want to penetrate the threads with lubricant more effectively a blast of choke and carb cleaner followed by a squirt of plus gas has worked well for me.
 
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